Taper cutting attachment tool



June 19, 1945.

s. H.. vlNNER TAPER CUTTING ATTACHMENT TOOL Filed oct. 2v, i943 2 Sheets-Sheet 1 77ML 5705A June 19, 1945.

S. H.v VINNER TAPER CUTTING ATTACHMENT TooL Filed Oct. 27, 1943 2 Sheets-Sheet 2 Patented June 19,1945` 2.378,811 o o TAPER CUTTING irritaoHMENTL '13,0014` i `Samuel H. Vinner,` Billings, Mont., assigner` to J ohnlrving Vinner, Billings, Mont.

Application october 27, 194.3, seriallvo. 507,547 40mm. (cosa-33j) This invention relates a taper cutting at -tachment tool and :has'forone of its objectsV the production of a simple and e'icient tool whichis adapted torbe attached to the tail stock of a lathe and which` may beleasily ladjusted to facil- Y itate theA cutting of a desired taper on the shaft which is being shaped. f A further object of this invention is the production of a taper cutting attachment ,tool which may be easily `and quickly adjustedto the desired taper, and which does not require the ad,- justment of the tail stock after the tool is removed therefrom to assure the tail stock.

A still further object of this invention is the production of a simple and eicient means `for facilitating the leveling of the taper cutting attachment tool after the tool has been attached to the tail stock.

Other objects and advantages 4of the present invention will appear throughout the following specification and claims. 7

In the drawings:

Figure 1 is atop plan viewof the taper cutting attachment tool;

By referring to the drawings, it will be seen that I designates the base, which base IIJ is adapted torest on the bed of the lathe upon which the tool is to be mounted. A vertically extending swiveled post II is carried `by the ibase IIJ and is provided vvitha threaded upper end I2 which `is threaded into the lower internally threaded end I3 of the supporting arm I4. The

post I I is adapted to be adjusted to raise` or lower the tool to a level positionand after such adjustment,.the supporting arm I 4` is locked in position by means of the lock nut I5.

A casing. I6 is supported upon the arm` I4, as shown, the arm t4 jbeing connected to the rear end of the rearwardly extending rib I1, thereby supporting the casing IB forwardly as well as laterally ofthe rib I1 and arm` I4. `The casing I6 isprovided with a transverse cavity I8 in the` `front face thereof, and a transversely movable carriage I9 is movable therein transversely of the casing I6. This carriage I9 is connected to arotatable threaded shaft 20, at one end thereof,

proper alignment of `which shaft 2p is threadedfthrqugh `thecasing 20, as at` 2|. An` adjustment wheel 22 is carried by the shaft 211.l A lock bolt 2.3 isfthreaded through the oppositefend of the` casing I6 and is l adapted to abut the,` adjoining" end of the carriage I9` to lock thefarriage I9 inaset position after the carriage Iilhas been adjusted bythe adjustment of the threaded `shaft 20. A lock nut 24 is carried by the bolt 23 to lock the bolt in position after adjustment. `The carriage I9 is profvidedwith a projeotingneck 25 having a reduced extension 26 intowhich is threaded the center tip 21, as at 28. This tip 21 is removable sothat a new tip may be easily substituted. A female center may also be usedif desired in place of the tip 21. The carriage I9 is held Within the cavity I8 by means of removable track ships I9b. t

The casing I 6` is carried by a solid tapering center stem 29 which projects rearwardly of and l in line with the center tip 21, as shown in Figure 1. A revolving tapering sleeve 3U is carried by stern. 29 and is held upon the stem 29 by a lock nut 3|. The stem 29 and sleeve 30 are adapted to 4loeclamped within the tail stock of a lathe and the stem 29 may rotate within the sleeve 30 as the supporting arm I4 is adjusted to bringthe casing I6 in a. level position. o

In addition to the foregoing description, it should be noted that the sleeve 3U is heldin the tail stock of a lathe in place of the ordinary dead center, and the base I0 is placed on the bed ofthe lathe. The post II is then adjusted to level the casing I6, a conventional level Ilia being carried` by the top of the 'casing I6 for this purpose,` as shown in" Figures 1 and 3. The carriage I9 is then adjusted for the desired taper of the shaft which is being shaped, the indicator 32 and scale 33 shown in `Figure 1 :being used for this purpose. The tail stock may be moved With the taper tool attached, if desired, so as to slide the same intothe object to be out, and there will be no danger of binding if the base I0, post II, arm

I4`and nut I5 are not locked inplace until the tail stock has Vbeen so moved. When the end I9EL ofthe carriage I9 abuts or is ilush with the end I8a of the casing I6, the center point 21 is then in the exact ycenter relative to the lathe. To cut an outside taper, the wheel 22 is rotatedcounterclockwise, using indicator `3I and scale 32 to set the center point21 forA the desired taper. The bolts 23 is then set and locked by nut 24 to hold the carriage I9 in the adjusted position. In cut,- ting a taper on a lathe, the tail stock is usually moved in order to offset the dead center, so as` to cut the desired taper. After cutting the taper,

so long as these changes fall within the following` specification and claims.

Having described the invention; what is claimed asnewis: Y 1 1 1. A tool of the class described vcomprising a casing, means for rotatably connecting said casing to the tail stock of a lathe, a center tip ad'- `justable laterally relative to the casing, av base,

and adjustable means engaging said base and casing for rotating said casing to render said casing level. l

2. A tool of the class described ycomprising a l casing, a carriage slidable transversely of the casing, a center tip carried by the casing, a loosely mounted sleeve carried by the casing and adapted to nt in the tail stock of a lathe, and adjustable means adapted to engage the bed of a lathe and to engage said casing for adjusting said casing to a level position.

3. A tool of the class described comprising a' casing, a carriage slidable transversely of the casing, means for moving said carriage to a selected position transversely of the casing, means lfor locking the carriage in a selected position,

means for rotatably supporting the casing, and means engaging said casing to one side of said last mentioned means and adapted to engage the bedof a lathe for rotating the casing to render the casing level.

'4. A tool of the 'class described comprising a casing, a carriage slidable transversely of the casing, means for moving said carriage to a selected position transversely of the casing, means for locking the carriage in a selected position, K

means for rotatably supporting the casing, and base, and adjustable means engaging said base and said casing for rotating the casing to render the casing level, and an indicating means carried by the lcarriage and casing to indicate the position of said carriage relative to said casing;

SAMUEL 

